package com.bruan.d5_interface;

public class D implements B,C{
    //重写完所有接口的抽象方法
    @Override
    public void testB1() {

    }

    @Override
    public void testB2() {

    }

    @Override
    public void testC1() {

    }

    @Override
    public void testC2() {

    }
}
